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MLB2026 season

Boston Red Sox vs Kansas City Royals

Head-to-head win probability for MLB. Next meeting when one is scheduled, otherwise the most recent game. This season's results use the last pre-kickoff number.

Most recent meeting

Wed, May 20, 2026

Royals logo
KC
Kansas City Royals
3
vs
Red Sox logo
BOS
Boston Red Sox
4
KC 55%45% BOS
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This season

2026 meetings. Pre-kickoff win probability and the result.

Model record on this matchup

Graded on the last pre-kickoff win probability, the same rule as the accuracy page. Preseason excluded.

Hit rate
0%
0 of 3 decided games
Meetings graded
3
2026
Correct calls
0
Favorite won

Factor comparison

Each team's top factors from this page's featured meeting.

Boston Red Sox
  • ELO Rating — Yankees ELO 1533 vs Red Sox ELO 1567 (diff: -35)
Kansas City Royals
  • Home Field Advantage — Royals are 32-38 at home this season; Guardians are 38-32 on the road

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